(2012) uses a mobile game to analyze typing patterns and improve soft keyboard designs.
Based on your request, here are some useful papers regarding mobile keyboards, focusing on virtual, physical, and adaptive text entry systems: Keyboard Mobile
(2010) offers a comprehensive overview of mobile text entry research, covering Fitts' Law, evaluation methodologies, and comparisons between layouts. Optimization & Autocorrect (2012) uses a mobile game to analyze typing
(2019) models the effect of user aversion to errors, revealing a speed limit despite high-accuracy autocorrection. Physical and Novel Keyboards focusing on virtual
(2021) analyzes how users develop typing strategies, including eye-hand coordination and location memory for QWERTY layouts.
(2013) uses Pareto optimization to improve keyboard algorithms, demonstrating better correction and completion rates.